"Want to show your affection for a special person with a small piece of knitting? Or would you like to give a small but lovely washcloth to your Mum on Mother's Day? Then this washcloth is perfect for you. It's a fun project that can be finished within a few hours with a gorgeous heart effect. It's great if you want to learn a new technique, like short rows or intarsia. Alternatively, it can be used as a potholder."

I just realized I'm running low on both dishcloths and washcloths, and have a ton of worsted acrylic. I usually see these types of pattern in cotton - can I use acrylic as well? Do they dry as well as cotton after use?

No, acrylic isn't a good replacement for cotton in dishcloths or washcloths. Acrylic yarn is plastic, so it doesn't absorb water well at all. My mom made some dishcloths in acrylic and ended up throwing them out -- useless. I made some cotton replacements for her and she's very happy with them.